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Pretreatment method of antibiotic production wastewater

A technology for producing wastewater and antibiotics, applied in natural water treatment, multi-stage water treatment, water/sewage treatment, etc., can solve the problems of insignificant treatment effect, waste of water resources, secondary pollution, etc., to reduce the pressure of subsequent biochemical treatment , the effect of high processing efficiency and low processing cost

Active Publication Date: 2020-08-11
SHENYANG POLYTECHNIC UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the physicochemical method is used to treat high-concentration antibiotic production wastewater, there are problems such as large dosage of chemical reagents and ineffective treatment effect.
At the same time, a large number of chemical reagents are likely to cause secondary pollution to the environment, and in the subsequent biochemical reactions, if the COD of the influent water is too high, the influent water needs to be diluted, resulting in an increase in the final water output, causing serious damage to water resources. waste

Method used

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  • Pretreatment method of antibiotic production wastewater
  • Pretreatment method of antibiotic production wastewater
  • Pretreatment method of antibiotic production wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: Azithromycin production wastewater pretreatment method:

[0047] Azithromycin production wastewater from a pharmaceutical company in Jiangsu was taken for a pilot test. The experimental process is as follows:

[0048] (1) First-level micro-electrolysis: Azithromycin production wastewater is discharged from the production workshop and enters the regulating pool. 2 SO 4 After adjusting the pH of the wastewater to 3.0-5.0, it enters the first-stage micro-electrolysis reactor. In the micro-electrolysis reactor, the wastewater rapidly undergoes galvanic reaction and redox reaction. Under the action of aeration, the wastewater and the structured packing are fully contacted and mixed to make the reaction continue. Proceed efficiently.

[0049] (2) Primary coagulation and sedimentation: After micro-electrolysis treatment, most of the small molecular organic matter in the wastewater is removed, and at the same time, the filler has a certain decolorization effect ...

Embodiment 2

[0055] Embodiment 2: solvent wastewater pretreatment method

[0056] The solvent wastewater from a pharmaceutical company in Jiangsu was taken for a pilot test. The experimental process is as follows: (1) First-level micro-electrolysis: the solvent wastewater is discharged from the production workshop and enters the regulating pool. 2 SO 4 Adjust the pH of the wastewater to 3.0-5.0 and then enter the primary micro-electrolysis reactor. Under the action of aeration, the waste water and the structured packing are fully contacted and mixed, so that the reaction can continue to proceed efficiently.

[0057] (2) Primary coagulation and sedimentation: By adding NaOH to adjust the pH of the wastewater to above 9.0, and adding PAC and PAM, the suspended particles in the wastewater are flocculated and removed by sedimentation, and finally achieve the effect of mud-water separation.

[0058] (3) Advanced electrocatalytic oxidation: After the initial coagulation and precipitation, the ...

Embodiment 3

[0063] Embodiment 3: Azithromycin production wastewater pretreatment method

[0064] Azithromycin production wastewater from a pharmaceutical company in Liaoning was taken for a pilot test. The experimental process is as follows:

[0065] (1) First-level micro-electrolysis: Azithromycin production wastewater is discharged from the production workshop and enters the regulating pool. 2 SO 4 After adjusting the pH of the wastewater to 3, it enters the first-stage micro-electrolysis reactor. The wastewater undergoes galvanic reaction and redox reaction rapidly in the micro-electrolysis reactor. Under the action of aeration, the wastewater and the structured packing are fully contacted and mixed to make the reaction continue and efficiently proceed. .

[0066] (2) Primary coagulation and sedimentation: After micro-electrolysis treatment, most of the small molecular organic matter in the wastewater is removed, and at the same time, the filler has a certain decolorization effect on...

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Abstract

The pretreatment method of antibiotic production wastewater is characterized in that the method includes the following steps: 1) primary micro-electrolysis; 2) primary coagulation and sedimentation; 3) advanced electrocatalytic oxidation; 4) secondary micro-electrolysis; Coagulation and precipitation. The invention mainly aims at the deficiency of the current wastewater pretreatment method in the antibiotic production process, and has high treatment efficiency and low treatment cost, and the COD and chroma of the antibiotic production wastewater treated by the process can both reach the standard.

Description

Technical field: [0001] The invention belongs to the field of waste water treatment, and in particular relates to a treatment method for antibiotic production waste water. Background technique: [0002] At present, my country has become one of the world's major producers of antibiotic preparations. The wastewater produced by the production of antibiotics often contains a wide variety of organic pollutants with a high concentration (COD is 5000-80000mg / L), most of which are difficult to biodegrade directly, resulting in a long retention time in the environment, which is harmful to the environment. create pollution. Antibiotic production wastewater also contains "three causes" (carcinogenic, teratogenic, mutagenic) organic pollutants, even if their concentration in the water body is lower than 10 -9 levels are still extremely harmful to human health. For the treatment of these organic wastewater with various types of organic matter and complex components, no suitable soluti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/06C02F103/36
CPCC02F1/46109C02F1/46176C02F1/467C02F1/4672C02F1/5245C02F1/56C02F1/66C02F1/725C02F9/00C02F2001/46138C02F2103/343C02F2301/08
Inventor 崔丽黄开拓沈新军苏仲民刘婷婷
Owner SHENYANG POLYTECHNIC UNIV
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